TWI601993B - Camera device - Google Patents

Description

Lens device

The present invention relates to a lens device, and more particularly to a lens device that is disposed in an electronic device and that can effectively reduce the thickness of the electronic device.

In the prior art, an electronic device equipped with a photographic lens is usually provided with an opening in its outer casing through which light can be imaged through a lens in the lens. Usually, this opening is sealed with a transparent plate to prevent dust from falling into the interior of the electronic device. However, for the convenience of the process, the conventional technique often only bonds the transparent plate to the outer surface of the outer casing. If the photographic lens is provided with an adjustable aperture, it is often difficult to prevent the dust from falling into the aperture adjustment blade. The leaves in the chamber. In addition, if the size and volume of the photographic lens can be further reduced, and the thickness of the electronic device equipped with the lens can be reduced, there is still room for improvement in the thickness of the electronic device equipped with the photographic lens.

It is an object of the present invention to provide a lens apparatus that solves the technical problem that dust may fall into the vane chamber of the aperture adjusting device in the prior art.

It is an object of the present invention to provide a lens device to further reduce the thickness of an electronic device equipped with the lens device.

In order to achieve the above object, the present invention provides a lens device disposed in an electronic device, the electronic device having a housing exposing an opening, the lens device having an optical disposed in the housing of the electronic device a system frame and a lens system, the lens system is disposed on the optical system frame, the lens device comprises: a bottom plate fixed to or extending from the optical system frame; a cover plate spaced from the bottom plate a distance and fixed on the bottom plate; at least one aperture adjusting blade disposed between the cover plate and the bottom plate for adjusting an aperture formed therebetween; and a light transmitting plate to form an accommodation space, The optical system frame, the bottom plate and the cover plate are placed in the accommodating space formed by the transparent plate, the transparent plate is located in the outer casing, and a part of the transparent plate is located at the opening exposed by the outer casing and the Between the bottom plate or the cover plate.

Another aspect of the present invention provides a lens device disposed in an electronic device, the electronic device having a housing exposing an opening, the lens device having an optical system disposed in the housing of the electronic device a frame and a lens system, the lens system is disposed on the optical system frame, the lens device comprises: a bottom plate having a first opening, the bottom plate is fixed to or formed by the optical system frame, The bottom plate is formed with a recessed portion; a cover plate having a second opening, the cover plate is spaced apart from the bottom plate; a fixing member having a base and an extension extending from the base, the base of the fixing member Placed in the recess formed by the bottom plate, the elongated portion of the fixing member is fixed to the cover plate through the recessed portion of the bottom plate; and at least one aperture adjusting blade is disposed on the cover plate and the bottom plate Between, to adjust the formation between them An aperture; wherein the opening through which the light is sequentially exposed through the outer casing, the first opening of the bottom plate, the aperture and the second opening of the cover plate enters the lens system or is ejected from the opening exposed by the outer casing in reverse order .

In the embodiment of the present invention, the aperture adjustment blade of the aperture adjustment device is disposed between the opening of the outer casing exposure and the outermost lens of the lens system, so that there is more space on the side to accommodate the actuator of the aperture adjustment device or the like. element. Furthermore, a part of the light-transmitting plate abuts against the outer casing corresponding to the exposed opening of the outer casing, and the light-transmitting plate is fixed to the optical system frame, and each component in the lens device is disposed in the accommodating space formed by the light-transmitting plate, so that The part prevents the dust from falling into the blade chamber of the aperture adjustment blade that accommodates the aperture adjustment device, and also avoids finger contact. In addition, the cover plate can be disposed within the coverage of the bottom plate, so that the optical system frame of the plastic material can be partially reduced in meat, and the accommodation space of the fixing member can be arranged, thereby reducing the thickness of the lens device.

10‧‧‧Lens device

11‧‧‧Shell

12‧‧‧Translucent panels

13‧‧‧ Covering board

14‧‧‧ aperture adjustment blade

15‧‧‧Optical system framework

16‧‧‧floor

17‧‧‧Lens system

18‧‧‧Image recorder

19‧‧‧Fixed parts

20‧‧‧Lens device

110‧‧‧ openings

130‧‧‧ openings

160‧‧‧ openings

161‧‧‧Depression

185‧‧‧ lower side panel

191‧‧‧Base

192‧‧‧Extension

Fig. 1 is a view showing a lens device of a first embodiment of the present invention.

Fig. 2 is a view showing a lens device of a second embodiment of the present invention.

The present invention will be further described in detail below with reference to the drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention, and the words "embodiments" used in the description of the present invention are intended to be used as examples, examples, or illustrations. The invention is defined. In addition, the articles "a" or "an" or "an" Also, in the figures, elements that are structurally, functionally similar or identical are denoted by the same reference numerals.

Referring to Fig. 1, there is shown a schematic view of a lens device 10 of a first embodiment of the present invention. The lens device 10 is disposed in an electronic device, and the applicable electronic device such as a mobile phone, a smart phone, a tablet computer, and a palm-type game machine is equipped with a shooting lens device, and may also be a camera, a video recorder, or the like, which has a shooting lens. It can also be a device with an optical system such as a projector. The electronic device has a housing or a housing 11. The necessary electronic components of the electronic device or the structural components supporting the electronic components are disposed in the outer casing 11. The outer casing 11 is the outermost casing of the electronic device, and exposes an opening 110. The interior of the lens device 10 (such as a camera lens) is accessed from the opening 110 or is internally ejected from the opening 110 by a lens device 10 (such as a projector). As follows, the lens device 10 will be described by taking a camera lens as an example.

As shown in Fig. 1, the lens unit 10 is provided with an optical system frame 15, a lens system 17, and an image recorder 18. The optical system frame 15 is made of plastic, which is a fixed component in an optical system, and components in the optical system can be placed and fixed on the optical system frame 15. Additionally, although only one lens is shown in Figure 1, this is for illustrative purposes only, it being understood that lens system 17 may include one or more lenses. The lens in lens system 17 is disposed on optical system frame 15. The image recorder 18 is disposed on the lower side plate 185 for recording images. In particular, image recorder 18 can receive light that passes through lens system 17 to form an image on the image plane.

Referring to FIG. 1 , the terminal device 10 with the lens is provided with a light-transmitting plate 12 , a cover plate 13 , a bottom plate 16 and at least one aperture adjustment blade 14 . The light-transmitting plate 12 is made of a material having high light transmittance, and is disposed inside the casing 11, adjacent to the opening 110 exposed by the casing 11, and then fixed to the optical system frame 15. The light-transmitting plate 12 forms an accommodating space, and the optical system frame 15, the bottom plate 16, and the cover plate 13 are placed in the accommodating space formed by the light-transmitting plate 12. The light-transmitting plate 12 may be composed entirely of a highly translucent material, or the portion of the translucent plate 12 corresponding to the opening 110 exposed by the outer casing 11 may be composed of a highly translucent material, and the materials of other portions may be limited. Further, a portion of the light-transmitting plate 12 is disposed between the opening 110 exposed by the outer casing 11 and the cover plate 13. The bottom plate 16 is fixed to or formed by the optical system frame 15 and the bottom plate 16 also has an opening 160. The cover plate 13 is a metal plate having an opening 130 in the central portion to allow light to enter the optical system. The cover plate 13 is spaced from the bottom plate 16 and fixed to the bottom plate 16 or the optical system frame 15, and the cover plate 13 can be fixed to the bottom plate 16 or the optical system frame 15 by means of a lock screw 19. The diaphragm adjustment blade 14 is a part of the aperture adjustment device for the imaging lens, and is driven by a driver (not shown) of the aperture adjustment device, and the size of the aperture is achieved by adjusting the position of the aperture adjustment blade 14. The aperture adjustment blade 14 is disposed between the cover plate 13 and the bottom plate 16 of the optical system frame 15 extending or fixed to the optical system frame 15 for adjusting the aperture formed therebetween. As can be seen from the above, the package structure of the lens device 10, from the opening 110 exposed to the outer casing 11 to the lower side plate 185, in turn, a portion of the light-transmitting plate 12, the cover plate 13, the aperture adjustment blade 14, the bottom plate 16, the lens system 17, and the image Recorder 18. In addition, the light is sequentially exposed through the outer casing 11 to the opening 110, a part of the light-transmitting plate 12, The opening 130 of the cover plate 13, the aperture at the position of the aperture adjustment blade 14, and the opening 160 of the bottom plate 16 enter the lens system 17, and in other applications (e.g., projectors), the light may be exposed from the outer casing 11 in an inverted sequence 110. Shoot out.

Additionally, lens system 17 can include at least two lenses and another aperture disposed between the two lenses or between the two lenses and the imaging plane. For example, the aperture of the position of the aperture adjustment blade 14 is an aperture-adjustable aperture, and the aperture of the lens system 17 is an aperture of a fixed aperture, and the aperture of the aperture of the aperture adjustment blade 14 is smaller than or equal to the aperture of the lens system 17 The aperture. When the optical system requires a small aperture aperture, the aperture of the optical system is defined by the aperture of the aperture adjustment blade 14; and when the optical system requires a larger aperture aperture, the aperture of the optical system is lensed The aperture of 17 in the system is defined. For example, when a smaller aperture aperture is required, the aperture of the aperture at which the aperture adjustment blade 14 is located can be reduced. In the evolution of the optical path, the aperture of the lens system 17 is disabled and in an inactive state; When a larger aperture aperture is required, the aperture of the aperture at the position of the aperture adjustment blade 14 can be adjusted to be equal to the aperture of the aperture of the lens system 17, where the aperture of the optical system is defined by the aperture of 17 in the lens system. This has the advantage that the aperture-adjustable aperture can be placed outside the lens on the object side, where there is more room for the aperture adjustment device, which in turn reduces the lens size.

In the embodiment of the present invention, the aperture adjusting blade 14 of the aperture adjusting device is disposed between the opening 110 exposed by the outer casing 11 and the outermost lens of the lens system 17, so that there is more space on the side to accommodate the aperture adjusting device. Drive or Other components. When the diaphragm adjusting blade 14 of the diaphragm adjusting device is disposed between any two lenses, the arrangement of the actuator or other components of the diaphragm adjusting device is limited, and the arrangement is complicated and inconvenient. Furthermore, in the embodiment of the present invention, a part of the light-transmitting plate 12 abuts against the outer casing 11 corresponding to the opening 110, and the light-transmitting plate 12 is fixed to the optical system frame 15, and the components in the lens device 10 are disposed on the light-transmitting plate 12. In the formed accommodation space, it is possible to prevent dust from falling into the blade chamber of the aperture adjustment blade that accommodates the aperture adjustment device, and to avoid finger contact.

The lens device 20 of the second embodiment of the present invention is different from the first embodiment in that, in the second embodiment of the present invention, the cover plate 13 is disposed within the coverage of the bottom plate 16, and the bottom plate 16 is located above, and the cover plate 13 is modified. To be disposed below, the cover plate 13 is fixed to the bottom plate 16 or the optical system frame 15 by a fixing member (such as a screw) 19, and the aperture adjustment blade 14 is accommodated between the cover plate 13 and the bottom plate 16. Specifically, the bottom plate 16 is formed with a recessed portion 161. The fixing member 19 has a base 191 and an elongated portion 192 extending from the base 191. The base 191 of the fixing member 19 is received in the recessed portion 161 formed by the bottom plate 16, and the fixing member The elongated portion 162 of the 192 is passed through the recessed portion 161 of the bottom plate 16 to be fixed to the cover plate 13. In addition, in the package structure of the lens device 20, the opening 110 exposed from the outer casing 11 to the lower side plate 185, in turn, a portion of the light-transmitting plate 12, the bottom plate 16, the aperture adjustment blade 14, the cover plate 13, the lens system 17, and the image Recorder 18. In addition, the light sequentially enters the lens system 17 through the opening 110 exposed by the outer casing 11, the portion of the light transmissive plate 12, the opening 160 of the bottom plate 16, the aperture of the position of the aperture adjustment blade 14, and the opening 130 of the cover plate 13, in other applications. In the case of a projector, for example, light can be emitted from the opening 110 exposed by the outer casing 11 in reverse order. The advantage of this technical solution is that It is convenient to partially reduce the meat of the optical system frame 15 of the plastic material, and arrange the accommodation space of the fixing member, thereby reducing the thickness of the lens device.

The present invention has been disclosed in the above preferred embodiments, and is not intended to limit the scope of the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

10‧‧‧Lens device

11‧‧‧Shell

12‧‧‧Translucent panels

13‧‧‧ Covering board

14‧‧‧ aperture adjustment blade

15‧‧‧Optical system framework

16‧‧‧floor

17‧‧‧Lens system

18‧‧‧Image recorder

19‧‧‧Fixed parts

110‧‧‧ openings

130‧‧‧ openings

160‧‧‧ openings

185‧‧‧ lower side panel

Claims (10)

A lens device is disposed in an electronic device, the electronic device having a casing exposing an opening, the lens device having an optical system frame disposed in the casing of the electronic device and a lens system, The lens system is disposed on the optical system frame, and the lens device comprises: a bottom plate fixed to or extending from the optical system frame; a cover plate spaced apart from the bottom plate and fixed on the bottom plate At least one aperture adjusting blade disposed between the cover plate and the bottom plate for adjusting an aperture formed therebetween; and a light transmissive plate forming an accommodation space, the optical system frame, the bottom plate, and the The cover plate is placed in the accommodating space formed by the transparent plate, the transparent plate is located inside the outer casing, and a portion of the transparent plate is located between the opening exposed by the outer casing and the bottom plate or the cover plate. The lens device of claim 1, wherein a portion of the light transmissive plate, the cover plate, the aperture adjustment blade, and the bottom plate are sequentially arranged from the opening exposed by the outer casing to the lens system. The lens device of claim 2, wherein the cover plate has a first opening, the bottom plate has a second opening, the light is sequentially exposed through the outer casing, the portion of the light transmissive plate, the The first opening and the second opening enter the lens system or are ejected from the opening exposed by the outer casing in reverse order. The lens device of claim 1, wherein a portion of the light transmissive plate, the bottom plate, the aperture adjustment blade, and the cover plate are sequentially arranged from the opening exposed by the outer casing to the lens system. The lens device of claim 4, wherein the cover plate has a first opening, the bottom plate has a second opening, the light is sequentially exposed through the outer casing, the portion of the light transmissive plate, the The second opening and the first opening enter the lens system or are ejected from the opening exposed by the outer casing in reverse order. The lens device of claim 1, further comprising a fixing member having a base and an elongated portion extending from the base; the bottom plate is formed with a recessed portion, the base of the fixing member is received by the base The recess formed by the bottom plate, the elongated portion of the fixing member is fixed to the cover plate through the recess portion of the bottom plate. The lens device of claim 1, wherein the optical system frame is made of plastic, and the cover plate comprises a metal flat plate. The lens device of claim 1, wherein the lens system comprises at least two lenses and another aperture. The lens device of claim 8, wherein the aperture of the aperture formed by the aperture adjustment blade is smaller than or equal to the aperture of the other aperture in the lens system. A lens device is disposed in an electronic device, the electronic device having a casing exposing an opening, the lens device having an optical system frame and a lens system disposed in the casing of the electronic device, The lens system is disposed on the optical system frame, and the lens device comprises: a bottom plate having a first opening fixed to or extending from the optical system frame, the bottom plate being formed with a recess; a cover plate having a second opening, the cover plate being spaced from the bottom plate a fixing member having a base and an extension extending from the base, the base of the fixing member being received by the recess formed by the bottom plate, wherein the extending portion of the fixing member is from the bottom plate a recessed portion is fixed to the cover plate; and at least one aperture adjustment blade is disposed between the cover plate and the bottom plate for adjusting an aperture formed therebetween; wherein the light is sequentially exposed through the outer casing The opening, the first opening of the bottom plate, the aperture and the second opening of the cover sheet enter the lens system or are ejected from the opening exposed by the housing in reverse order.